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A Fuzzy OLTC Controller: Applicability in the Transition Stage of the Energy System Transformation

Author

Listed:
  • Wiktor Wróblewski

    (Electrical Power Engineering Institute, Faculty of Electrical Engineering, Warsaw University of Technology, 00-662 Warsaw, Poland)

  • Ryszard Kowalik

    (Electrical Power Engineering Institute, Faculty of Electrical Engineering, Warsaw University of Technology, 00-662 Warsaw, Poland)

  • Marcin Januszewski

    (Electrical Power Engineering Institute, Faculty of Electrical Engineering, Warsaw University of Technology, 00-662 Warsaw, Poland)

  • Karol Kurek

    (Electrical Power Engineering Institute, Faculty of Electrical Engineering, Warsaw University of Technology, 00-662 Warsaw, Poland)

Abstract

This paper introduces a Fuzzy Logic Controller designed for an on-load tap changer within medium voltage distribution systems with bulk penetration of Distributed Energy Resources. As the on-load tap changer remains one of the most essential forms of voltage regulation in medium voltage distribution networks, improving its operation is a cost-effective response to the emerging voltage violations caused by intermittent generation during the early stages of the energy system transformation. Software-in-the-loop simulations were conducted to validate the effectiveness of the proposed algorithm compared to the conventional methods. A modified CIGRE Medium Voltage Distribution Network Benchmark in European Configuration was modelled while the controller code developed in Python 3.12 was running on a PC, both coupled in a real-time closed-loop environment. The analyses showed that the proposed algorithm managed to reduce overvoltage from 7.02% to 4.85% in the benchmark network, thus demonstrating that the algorithm is efficient and ready for on-field implementation.

Suggested Citation

  • Wiktor Wróblewski & Ryszard Kowalik & Marcin Januszewski & Karol Kurek, 2024. "A Fuzzy OLTC Controller: Applicability in the Transition Stage of the Energy System Transformation," Energies, MDPI, vol. 17(11), pages 1-16, June.
  • Handle: RePEc:gam:jeners:v:17:y:2024:i:11:p:2716-:d:1407845
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    References listed on IDEAS

    as
    1. Kwang-Hoon Yoon & Joong-Woo Shin & Tea-Yang Nam & Jae-Chul Kim & Won-Sik Moon, 2022. "Operation Method of On-Load Tap Changer on Main Transformer Considering Reverse Power Flow in Distribution System Connected with High Penetration on Photovoltaic System," Energies, MDPI, vol. 15(17), pages 1-17, September.
    2. Murray, William & Adonis, Marco & Raji, Atanda, 2021. "Voltage control in future electrical distribution networks," Renewable and Sustainable Energy Reviews, Elsevier, vol. 146(C).
    3. Ma, Wei & Wang, Wei & Chen, Zhe & Wu, Xuezhi & Hu, Ruonan & Tang, Fen & Zhang, Weige, 2021. "Voltage regulation methods for active distribution networks considering the reactive power optimization of substations," Applied Energy, Elsevier, vol. 284(C).
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